1. Bearing abnormal radial force and shaft bending When the assembly of the motor and reducer is not concentric, the output shaft of the reducer will bear abnormal radial force from the input end. This radial force will act on the output shaft for a long time, forcing it to bend and deform. Moreover, as the output shaft rotates, the direction of bending and lateral force will continue to change (a 360-degree change per rotation). 2. Metal structure damage and temperature rise. The continuous radial force generated by the concentricity error will increase the temperature of the output shaft, causing its metal structure to be continuously damaged. As the error increases, this damaging process accelerates. 3. Output shaft breaks When the radial force accumulates for a long time and exceeds the maximum radial load that the reducer output shaft can bear, it will eventually cause the output shaft to break. Since the output of the reducer is the product of the output of the drive motor and the reduction ratio, the output is greater than that of the motor, so the output shaft of the reducer is more likely to be broken when the assembly is not concentric. 4. Gear wear and precision Read More

1. Vibration and abnormal noise When the concentricity of the reducer deviates, the interaction between the rotating parts becomes uneven, which will cause the equipment to produce greater vibration and noise during operation. For example, if the bevel gear of a helical gear reducer is installed with axial positioning deviation, it will lead to poor meshing, which will be manifested as a decrease in transmission efficiency and an increase in noise. Long-term vibration can also cause anchor bolts to loosen, fatigue damage to components, and even affect peripheral equipment. 2. Increased component wear and fatigue fracture. Installation deviations will generate additional radial forces (bending moments), causing bearings and gears to withstand alternating overloads and eccentric loads. Gear damage: Eccentricity will cause the centers of rotation to not coincide, producing a radial additional force that changes direction, which is directly converted into periodic knocks between the tooth surfaces. This can damage the gear contact surfaces, causing pitting, spalling and even broken teeth. Bearing damage: The contact stress of the bearing rolling elements on the raceway fluctuates, which will cause fatigue spalling on the raceway surface in advance; at the same time Read More

1. Hidden erosion of equipment life. Poor lubrication will accelerate the physical loss of the reducer from multiple dimensions, and its impact is gradual and irreversible. 1. Increased wear and shortened the life of core components. When the lubricating oil film cannot effectively form or breaks, the metal surfaces of the gears and bearings will come into direct contact, leading to adhesive wear, abrasive wear and even pitting corrosion. This wear not only destroys the tooth surface finish, but also produces metal debris. These debris mixed into the lubricant will turn into 'abrasive paste', further aggravating wear and forming a vicious cycle, leading to early bearing failure, broken gear teeth, and ultimately paralysis of the entire machine. 2. Cause overheating, leading to material performance degradation. Lubricant is not only a friction reducer, but also a key heat dissipation medium. Insufficient oil or aging of the oil will cause the friction heat to be unable to be exported in time, resulting in local high temperatures. Continuous high temperature will cause thermal expansion of gear and bearing materials, destroying the original precision fit clearance. In severe cases, it may cause shaft holding or jamming. at the same time Read More

The following are the key adjustment skills and steps for the installation of the reducer of the cutting machine: 1. Core adjustment skills 1. Give priority to elastic couplings. In the connection between the motor and the reducer, the reducer and the load (such as screw, gear rack), the use of rigid couplings is strictly prohibited. Flexible couplings such as plum blossom couplings, diaphragm couplings or bellows couplings should be preferred. Elastic couplings can compensate for slight installation deviations and thermal expansion during operation, effectively absorb vibration and impact, and are the first line of defense to ensure coaxiality. 2. Follow the cycle principle of 'loose-adjust-tight-restore'. This is the key to avoid 'false alignment'. Tightening the bolts alone will cause a slight shift in the position of the reducer. Loosen: Completely loosen all fixing bolts, leaving the reducer in a free state. Adjustment: Use a dial indicator or laser alignment tool for precise measurements and adjustments. Tightening: Gradually tighten to the specified torque in 2-3 times in diagonal order. Re: Measurement must be re-measured after tightening Read More

1. Core benchmark determination rules ‌Rotation matching principle‌: The backstop is divided into two types: clockwise (S) and counterclockwise (N), which must completely correspond to the actual normal working rotation direction of the high-speed shaft of the reducer. For example, when driving an upper belt conveyor, a counterclockwise (N) model must be selected. Misinstallation of a clockwise model will directly lead to the failure of the backstop function. ‌Steering arrow check‌: There is usually a clear steering mark arrow engraved on the surface of the backstop casing, which must be consistent with the normal working direction marked on the reducer nameplate. You can refer to the mantra 'Working direction of rotation matches the arrow, don't worry about reversal and self-locking'. ‌Uniform standard of viewing angle‌: Use the viewing angle facing the output shaft end of the reducer as the benchmark to determine the direction of rotation to avoid misjudgment of direction caused by different viewing angles. 2. Practical verification method‌Manual idling test‌: Before installation, turn the inner ring of the backstop by hand to confirm that its free rotation direction is consistent with the normal working direction of the reducer, and the anti-reverse locking direction is the same as after the equipment is shut down. Read More

1. The core function failure backstop is a one-way locking device, and its internal structure (such as wedges and rollers) has clear directionality. Once installed upside down, under working conditions where the equipment needs to prevent reversal (such as shutdown or power outage), the backstop will not only fail to lock, but will be in a 'free' state, causing the equipment to reverse under the action of load gravity or inertia. 2. Risk of equipment damage and scrapping of the backstop itself: After being installed upside down, key components such as pawls, ratchets, springs or rollers inside the backstop will withstand abnormal reverse impact forces, causing local wear to sharply increase, or even breakage and tooth damage, causing the backstop to be directly scrapped. Damage to related components: Abnormal vibrations and impact loads caused by backstop failure will be transmitted to ZSY reducers, motors and other equipment through the transmission shaft, accelerating the wear of precision components such as bearings and gears, and shortening the service life of the entire machine. Abnormal shutdown: Installing the backstop backwards may cause additional resistance or jamming of the equipment during operation. Read More